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The use of UAVs is becoming more and more common today. Otherwise, it is not in the field of modern geodesy only, where this technology is already commonly used to facilitate certain types of work. Especially for jobs that do not require extra high precision, work in large areas, or work in poorly accessible places. This article focuses on comparing point clouds produced by the UAV measurement with terrestrial laser scanning point cloud and determining the results precision according to a number of ground control ...

Currently, there are four global satellite navigation systems (GNSS), American GPS, Russian GLONASS, Chinese BeiDou (BDS), European Galileo. Furthermore, there are several systems operating on a regional scale. It is widely proven scientifically and empirically that the correct combining of global satellite navigation systems (GNSS) shortens the time of convergence of precise positioning solutions, improves the accuracy and precision of determined coordinates, and also increases the availability of carrying out me...

Crystal dextrose is produced from solutions by enzymatic hydrolysis of starch. The process of crystallization of dextrose is the most complicated and responsible. The nucleation stage is particularly difficult. The common theory of crystallization connects the rate of nucleus formation with the surface tension of the solution. The purpose of the research is to activate the crystallization process by using surface-active substances (surfactants). Aliphatic alcohols: butanol, propanol, isobutanol, isopropanol were u...

Crystal dextrose is produced from solutions by enzymatic hydrolysis of starch. The process of crystallization of dextrose is the most complicated and responsible. The nucleation stage is particularly difficult. The common theory of crystallization connects the rate of nucleus formation with the surface tension of the solution. The purpose of the research is to activate the crystallization process by using surface-active substances (surfactants). Aliphatic alcohols: butanol, propanol, isobutanol, isopropanol were u...

The largest amounts of air pollutants are produced by the combustion of fossil fuels (coal, lignite, petroleum, natural gas etc.). This results in an emission of huge amounts of greenhouse gases into the atmosphere (carbon oxides (CO, CO2), sulfur oxides (SO2, SO3), nitro gen oxides (NOx), dust, ashes and soot and others. Significant share of the air pollution is communication, mainly wheeled transportation. Aviation contributes to the pollution of the stratosphere, which adversely affects the state of ozonsphere ...

Petri nets is the well-known mathematical tool for the modeling and verification of parallel systems of all kind. Multiprocess Petri multinets with time stamps (MPTSM) are the newly introduced class of low-level Petri nets, whose definition and the properties are the main topic of this article; they generalize the properties of P/T Petri multiprocess multinets in the area of design, modeling and verification of generally parallel programming systems with the discrete time. The MPTSM with the support of the ASYNC-C...

St. Petersburg is one of the most northern world megapolises. Climate changing, increasing of anthropogenic pressure, diseases and insect pests invasions determine the necessity of trees and shrubs assortment revision. St. Petersburg is known as one of the major centers of introduction works and landscape design development both in Russia and in the world. These work is devoted to estimation of trees and shrubs composition in St. Petersburg greening. The approaches to sustainable assortment development in modern c...

There have occurred significant changes in the world political stage over the last more than 20 years. Events of the recent decades have changed territory, economic, social, natural resource and environmental situation in Russia. Nowadays up to 70% of territory of the Russian Federation, nearly half of northern land areas of the globe are regarded as territory of the nordic region and the Arctic region. The notion ?Arctic region? (?Arctic zone?) has no distinct definition, it is frequently equated with the notion ...

The development of methods for automatic preprocessing of observational data of small-aperture seismic arrays that precede the detection and identification of seismic events by the method of waveform cross-correlation is considered. Preprocessing is based on adaptive channel selection. The methods developed by us provide for the calculation of the quality metrics of the seismic channel by means of spectral and amplitude analysis of records. The selection of channels is based on the correspondence of the quality of...

The legal review of administrative decisions by independent courts is an accepted democratic principle, present in key European practices and an important contribution to ensuring order, especially to protect individual rights in front of the administration. The judicial review of governmental activities originates in the philosophy of the state governed and limited by law, and is based on the principle of supremacy of the law. Nowadays, a state of law cannot be imagined without access of all citizens to an indepe...

In research are used objective and subjective sound features on the development of noise annoyance assessment model in urbanized environment. They represent a quantitative and qualitative evaluation of the acoustic signal. The relation of objective features in subjective features is the direction of research on the development of noise annoyance evaluation model developed for several years. The carrier of information about the characteristics of sound in the environment is an acoustic signal coming from noise sour...

Process and plant design need to be continuously improved, the use of new safety concepts to a full extent being one of the key parameters leading to their sustainable improvement. Accidents occurred over time in industrial facilities where explosive gas or vapor atmospheres may be present have put the explosion risks high on the agenda of regulators, operators, accident investigators or researchers in the field. Accidental flammable gas leaks in mixture with air may generate explosive atmospheres which once ignit...

Aerospace engineering is the engineering field concerned with aircraft and spacecraft development and operating. Thus it correspondingly has two major and actually overlapping sectors, as aeronautical and astronautic engineering. Aeronautical engineering was the original term for the field, but as flight technology advanced to include craft operating in outer space as well, this means the field of astronautics, the broader term of aerospace engineering has come since a while into common use. Aerospace engineering,...

The paper presents the results of the experiences organized on the tailings dump resulting from the surface mining of lignite in Rovinari, Gorj county, for testing the effects of a fertilizer assortment, such as: liquid fertilizers based on humates extracted from lignite, complex mineral fertilizer (N105 P105 K105 and N150 P150 K150), farmyard manure (20, 40 and 60 t/ha) and compost (20, 40 and 60 t/ha), as well as mixtures of the two types of organic fertilizers with mineral fertilizer. Sunflowers have been used ...

In the article the main results of study in the field of weather and climate risks evalua-tion for the territory of the Belgorod oblast are summarized. The directions of these risks management at the regional level are determined. Against the backdrop of global climate change, the volatility of agricultural and meteor-ological conditions not only continues but also worsens. The observed increase in the frequency of occurrence of hazardous agro-meteorological phenomena in the region is determined by climatic change...

The article is devoted to the problems of the agro-industrial complex of the Republic of Mari El, which are necessary to ensure sustainable economic development of the region in the future. In recent decades, the agro-industrial complex has been identified as the main, priority direction of development, stimulating growth. Nevertheless, the situation with the innovative activity of agricultural producers in the region continues to deteriorate. Therefore, modernization, based on the digitization of production and s...

Organic biopolymers represent a source of raw material for agriculture, because the composition of protean wastes provides enough elements to improve composition and rehabilitation of degraded soils. The main target of this scientific paper is investigating the development possibilities for various multicompound systems of biodegradable polymers and studying the effects of these complex products on the structure and chemical and physical characteristics of degraded or contaminated soils (having a poor level of org...

The adoption and implementation of the strict provisions regarding the marine environment by the Maritime Maritime Organisation (IMO) resulted in imposing the limits for the SOx, NOx, and CO2 as the exhaust gas components. However, the limitations do not refer to fishing cutters/vessels. Given the number of the European fishing fleet, operating at the ECA areas, it should be expected that the limitations related to this group of vessels are implemented. In order to determine the degree of threat to the environment...

In ventilation systems, ground heat exchangers are becoming more and more popular, which can be considered as a passive air-conditioning system. Two types of heat exchangers are used: with a membrane separating ventilation air from the ground and membrane-less. The air preparation system described below is designed to simulate the temperature change conditions corresponding to seasonal changes. It was proposed to use a heat transport system using Peltier modules. As a result, it was possible to reduce or increase ...

As a basic component of the environment, the air, vitally contributes to life maintenance and society development, through its physical and chemical properties. Thus, studying air quality, as the main factor for the living world?s progress, becomes a topical issue. Therefore, this paper proposes a detailed analysis of Botosani Town air quality. The analysis was obtained following a statistical processing of open-source data, for the year 2017, provided by the County Environmental Protection Agency and the National...

The production of particulate matter and harmful gases from different sources is a problem in the cities. An important role in air pollution is played by industry and road transport. Traffic volume continues to grow and road transport has the greatest impact on the atmosphere in the vicinity of the urban roads. Due to the dominant use of combustion engines, exhaust gases contain large amounts of gaseous pollutants as well as particulate matter. They particularly include a large amount of the finest PM fractions, w...

The current legislative standards require as much as possible energy efficient construction. Airtightness is a key component of energy-efficient buildings. Airtightness is characterized by air leakage through the building envelopes. Untightness leads to uncontrolled air exchange and increased heat loss. Using the exploratory analysis of variables is analyzed the state of the airtightness of energy-efficient buildings in the United Kingdoms in recent years. The source of data sample set on the airtightness of UK en...

Energy efficiency of buildings is one of the directions for implementing a sustainable community development program. The purpose of this paper is to present a calculation algorithm for the transfer of thermal energy between buildings. In stationery regime, this problem is reduced to solving Laplace's accomplishment with the given frontier conditions (Dirichlet's problem). For the general case, it is not known the analytical solution of these problems. Contemporary computing tools solve this problem using numerica...

Carbonate rocks, bearifng the majority of world?s hydrocarbon reserves often exhibit variable lithology. In carbonates, different proportions of calcite and dolomite, accompanied by other minerals can be expected. Dolomitization of carbonate rocks usually leads to porosity enhancement, since dolomite crystals occupy smaller volume in comparison to calcite. This paper considers the integration of Alizarine Red S staining method and image analysis in order to qualitatively state the content of both calcite and dolom...

In connection with the implementation of European Union's directives is necessary to make use of renewable energy sources (RES). The use of these energy sources is associated with the obligation to act in accordance with the sustainable development concept. In Poland, this concept is provided in Art. 5 of the Constitution of Polish Republic. In the paper, the overall structure of primary energy production in Polish economy in comparison to the European Union was presented in period 2011-2015. The production of ren...

In all industrial branches, the last period is under the sign of economic progress, but with the lowest energy consumption and the lowest possible release of pollutants. Technologically, therefore, the removal of polluting technologies and the introduction of new "environmentally friendly" technologies are being sought. Thus, the new industrial trend is to reduce the use of molded or forged semi finished products and the introduction of cold rolled semi finished products or other processes. This transformation can...

Climate change will lead to an intensification of the hydrological cycle and can have a major impact on regional water resources. A change in water volume and distribution will affect both groundwater and surface water reserves usable in industry, domestic activities, irrigation, navigation, aquatic ecosystems, hydropower and some recreational activities. Changes in the total amount of rainfall, in their frequency and intensity, directly affect the size and times of floods and droughts. The impacts of climate chan...

The main objective of our studies undertaken is to determine the causes of the increased degradation of the soil from upper terraces of Moldova's river catchment. In the studied area from the western part of the Suceava Plateau (North-Eastern Romania) was built in 1978-1980 with a drainage network consisting of channels and underground drains. These works have been associated with leveling, deep loosening, mole drainage and liming. The studied settlement is located on the terrace platform with an average altitude ...

Last year (2017) was one of the three hottest years on record, with many high-impact events including catastrophic hurricanes and floods, debilitating heat waves and drought. Long-term indicators of climate change continue unabated and arctic sea ice coverage remained below average. Of the hottest years on record, 15 out of 17 have come since 2000. By contrast, more than a century has gone by since the planet had a record cold year (1911). At European level, based on the three different observational records of gl...

This research focuses on the energy demand and the possibilities of covering the energy needs with renewable energy within the territory of Republic of Moldova. The evaluation of the alternative energy resources is extremely important as the Republic of Moldova mainly depends on Ukraine for imported energy. Developing new sources of energy will partially ensure the stability of the economy. The renewable energy will allow the balancing of the payments and will also strengthen, at least to a certain extent, the cou...

The purpose of hydraulic fracturing is to stimulate the well so as to significantly improve its performance. To achieve this, a fracture is created, which is then propped open with a propping agent. The success of this process depends largely on the fracture conductivity, which is the product of the fracture width and the apparent permeability of the proppant within the fracture. After hydraulic fracturing, well productivity is definitely affected by the interaction between the proppants and the fracture surface. ...

Facilities and technical systems used in coal mines have limited durability. This is the result of very difficult conditions in which they are used. In particular it applies to environmental conditions and not entirely predictable load states of these facilities. Mining machines and devices are also exposed to various types of hazards, which in many cases significantly reduce their durability. For this reason, it is very important to properly use them and supervise and monitor their work. In this respect, huge res...

This article presents an approach for managing and comparing data, concerning some main food products in Bulgaria. The source for the search of these product categories (bakery products, milk and milk products, fish and fish products and etc.) is the created relational database. The extracted data for the selected category have been grouped, compared and processed. The obtained results enable the user to present relevant conclusions for the examined time interval. This approach is applied to the data on bread and ...

The transition to advanced digital, intelligent production technologies, the creation of systems for processing big amounts of data, machine learning and artificial intelligence is caused, among other things, by the need to move to a new level of digital energetics, which ensures the interrelationship between the generation, distribution and consumption of energy resources and their effective management. The efficiency of the use of energy resources is one of the urgent problems in the energy sector. One of the pr...

In this research we investigate the significance of the CGAL library which is a source of algorithms related to computational geometry. We briefly describe the exact computation paradigm that provides obtaining reliable geometrical results. We present the advantages of using the CGAL library in terms of investigating certain parameters of geological planar structures. We show that several parameters that can be computed and attributed to considered planes and subsequent use of further statistical methods becomes p...

Dust and heavy metals pollution is the first-priority problem of Almaty city. The city is located at the foot of the Tien Shan Mountains in the Southeast of the Republic of Kazakhstan and has the following geographical coordinates: 77 E (east longitude) and 430 N (north latitude). As long as existing pollution monitoring system in Almaty city is represented just by chemical and analytical data acquisition, it is claimed to be inefficient. The purpose of this reseach is to employ the best mathematical toolkits in p...

The central part of the East European craton (EEC) is the site of extensive mining activity. The small aperture array ?Mikhnevo? (MHVAR) monitors the weak seismic events in the distance range about 500 km. The most of them are identified as industrial explosions using the S/P amplitude ratio, day-time distribution criteria, spectral content, recurrence and clustering of events. The detailed analysis of waveform variations allows monitoring of the change in the position of the explosion as well as the subtle change...

The advancement of tracking technologies such as RFID (Radio Frequency Identification) in recent years supported the study area of shopping behavior of consumers in retailing setting has globally regained increased interest. However, only few studies have attempted to analyze consumer shopping behavior using the RFID data. The purpose of this paper is to propose the framework based on behavioral and environmental variables, which can be tested using the RFID data obtained from the recent experiment in one of the s...

The sudden and intensive variations of the ionosphere could be represented through its basic property ? electron density which is the main parameter concerning radio propagation through this part of the atmosphere. It is radio sounding as one of the main measurement methods applied among numerous methods for electron density estimation suitable for different ionosphere sub-regions monitoring as a part of the remote sensing Earth observation technics. Collecting VLF/LF (3-300 kHz) radio sounding data which reflect ...

Interferometric data processing (InSAR) for extraction of information about the Earth terrain and its changes is one of the general guidelines in development of contemporary space-based radar systems. The InSAR processing for building the digital elevation models (DEM) and terrain displacement maps includes a phase noise suppression step, which is usually performed by adaptive spectral filers (Goldstein filter). Such filters need an interferometric coherence value as a parameter, and a method of coherence estimati...

The machines used in hard coal mining must exhibit very good technical, safety and reliability parameters. These parameters determine their efficiency, operational safety and effectiveness of the entire production process. The last several decades have seen increased mechanisation of the mining process. Increasingly more cutting-edge and efficient machines have been used for this purpose. Attempts have also been made to partially or fully automate the process of mining. The concept of an ?intelligent? mine has com...

This paper describes the design of a new product, conceived by the authors, part of a research contract and of a technological transfer, from university to the industrial market. It is a low voltage class C surge-arrester, based only on metal-oxide varistors, designed for low voltage residential equipment. Located in the indoor interior connection boxes, it could protect the whole installation against any type of occurring overvoltage (pulsed or long time one). The results of the applicative research were transfer...

The paper is focused to characterize a limited assortment in the context of a set of drought sensitivity indices, grouping these indices according to the conditions they reflect (stress and / or normal) and the correlations between them. In our research, we aimed also comparing different sensitivity indicators proposed in order to identify the most appropriate index to characterize the behavior of varieties that we have studied in field experiments. The 13 varieties have been tested for 14 years between 2002 and 2...

Open-ended steel tube piles are widely used in marine construction, coastal engineering, port and offshore structures. During the installation of pipe piles with open end into the noncohesive sandy soil plugging effect usually appears (mainly under impact driving). It complicates the pile driving and may cause the increasing of the pipe pile wall thickness. In this paper the method of estimation of the possibility of plug formation inside pipe is elaborated with help of dynamic modulus of Plaxis 8v software. This ...

The streams belong among natural part of the urbanized landscape. It is generally accepted that this type of landscapes together with stream may be very difficult restored to original levels of historical or natural status. Past design and realization of the stream modifications did not take into account in a sufficient extent the ecological criteria. Due to the predominantly technocratic approaches to addressing these issues, the ecological balance has been disturbed; and the hydrological and morphological condit...

Ecological and resort area of Caucasian Mineral Waters occupies a special place among the resort regions of Russia due to the richness, diversity, quantity and value of mineral waters, landscape and climatic conditions, therapeutic muds. The pace of development of mineral water resources for the resort and industrial bottling has recently increased. The increase in the number of enterprises for bottling mineral water and organizations of sanatorium-resort type has a significant impact on the growth of water intake...

The article deals with the synthesis of a closed distributed control system for the drill temperature field. The technique is developed on the basis of the the temperature fields control function. The analysis and modeling of the drilling process during the passage of the drill through the variable environment (ice-ground-ice-water-ice) are performed with taking into account the drill heating. To increase the productivity of the passage, it is proposed to use sectional heating of the drill instead of the existing ...

The aim of this study is to determine the geocenter dynamics described by dynamic adaptive regression and the general laws of DORIS and GPS navigation systems. A spatial geocenter dynamics can be represented as coordinate and time series. Mathematical description of the time series allows for determination of systematic change in the geocenter dynamics. To improve the accuracy of modeling and forecasting of the geocenter dynamics and to identify the regular effects, the dynamic regression modeling approach is used...

The aim of the present work is to develop a fractal method for space maps analysis. Although there are accurate theories of lunar motion in the dynamic coordinate system based on lunar laser ranging and space measurements with an accuracy up to multiarcseconds, analysis of various models of the lunar figure is a complicated problem. The reason for it is that the determination of a reference system for coordinate data and assessing its authenticity are difficult. In order to solve the problem, a comparative method,...

The aim of this paper is to analyze magnetohydrodynamic (MHD) solar activity on the basis of modeling and predicting the Wolf number dynamics. This study is based on the use of adaptive regression modeling approach implemented in the software package ARDM (adaptive regression dynamic modeling). The preliminary data was investigated for the presence of trend stability with fractal analysis.Currently, not only the experts in the field of solar physics, climatologists, and researchers in many fields related to the is...